Hey, I just bought one of those $109 Thermos grills from home depot. It's the same grill as the $169 Char-Broil except the Thermos comes with a sideburner and the Char-Broil doesn't. They're a limited time deal so get em while they last.
Anyway, the manual says to burn em in for about 15 minutes to cure the paint and parts.
My question is ... would it also be a good idea to coat all the internal parts with peanut oil like I would cure my smoker?

My Charbroil came with a thin coat of oil on the inside surfaces on the burner tents. Not wanting to take a chance, I did the burn for 15 minutes before ever seasoning the grill surface. Cool thing was that the grill really gets up to temp with those three burners going full blast. Thermometer was going arount to 600 or better!

There are several reasons for curing:
1. It prevents rust
2. It prevents staining
3. It give the metal a natural non-stick property
4. In some cases it contributes to the flavor of food
5. And I just think it gives the grill a better look (if you care about that).

The dishwasher will strip the cast iron from all seasoning and causes it to rust. For every day cleaning, try the salt method. Place a generous amount of coarse salt in the skillet and heat it up, then let cool and whip it clean.
Also try this sight for cool cast iron stuff:
http://www.pebbleshop.com/store/castiron.html

So the dishwasher doesn't permanently ruin it. It just has to be re-seasoned. right?
I'd love to have a set of fajita skillets. I just tried typing "fajita skillet" in eBay and there are plenty. Anybody know of any other good sources?